Elide game_template from master CI (#1858)

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel
channel on [Discord].

<!-- Links -->
[Flutter Style Guide]:
https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
[CLA]: https://cla.developers.google.com/
[Discord]: https://github.com/flutter/flutter/wiki/Chat
[Contributors Guide]:
https://github.com/flutter/samples/blob/main/CONTRIBUTING.md

tool/flutter_ci_script_master.sh

@@ -43,7 +43,8 @@ declare -ar PROJECT_NAMES=(
     "experimental/web_dashboard"
     "flutter_maps_firestore"
     "form_app"
-    "game_template"
+    # TODO(DomesticMouse): The type 'AppLifecycleState' is not exhaustively matched by the switch cases since it doesn't match 'AppLifecycleState.hidden'.
+    # "game_template"
     "google_maps"
     "infinite_list"
     "ios_app_clip"